Valve.



No. 728,336. PATE'NTED MATH, 1903,

A. s. TUTTLE.

VALVE.

' APPLIOATION'I'ILED FEB. 20. 1902.

N0 MODEL.

W|TNE5E55 v LfiVENTUR:

' I v n/1255,;

No. recess.

UNITED- STATES Patented May 19, .1903.

PATENT OFFICE.

VALVE.

SPECIFICATION forming part of itters'latent ivo. 728 36, dated M 19,1903.

\ Application filed February 20, 1902. Serial No. 94.896. (No model.)

To aZZ whom it may concern.-

Be it known that I, ARTHUR S. TUTTLE, a citizen of the United States,residing at Brooklyn, county of Kings, and State of New York, haveinvented certain new and useful Improvements in Valves, of whichthefollowin g is a specification The invention relates to suchimprovements; and it consists of the novel construction andcombination'of'pa rts hereinafter described and subsequently claimed. I,

' Reference may be had to the accompanying drawings,and the referencecharacters marked thereon, which form apart of this specification.

Similar characters refer to similar parts in both figures.

Figure l of the drawings'is a central vertical longitudinal section of avalve embodying my invention applied to a water-main'for the purpose ofrelieving the main of accumulations of air. Fig. 2 is a view showingtheairchamber provided with a plurality of valved outlets.

My invention relates to automatically-operating valve connectionsbetween media of different densities or under difierent pressures, andmy invention contemplates the use of a valve adapted to be operated inone direction by reason of such diiferences in density or pressure andin the opposite direction by means of a buoyant weight under suitableconditions.

An important object of my'invention is to automaticallyrelieve mainscarrying water or other liquids from air and other gases which collectat pipe-line summits.- Accumulations of air in such mains often greatlyreduce their capacity and are asource of error when metering the supply.

Referring to the drawings, 1 represents a Water-main, and 2 an air orgas chamber located above the same, in communication therewith throughthe coupling 3. This gaschamber has one or more outlet-openings 4 in itsupper side, each adapted to be closed by a puppet-valve 5, such openingspreferably communicating with the atmosphere. These puppet valves arepreferably made buoyant, whereby they are adapted to be automaticallyclosed by flotation upon liquid contained in the air-chamber 2 beforesuch the stem 9 of one of the valves'5. '7 is preferably connected withthe valve-stem pressure Within the chamber.

liquidreaches a height'in said chamber such that it can escape throughthe outlets 4. These valves being open, it will be seen that gaseousmatter can freely ascend from the main into the air-chamber 2 and escapethence through the openings4. As the main becomes relieved of itsgaseous contents its liquid contents will gradually rise into theaircrurned at 8 upon a fixed support and operatively connected in anyknown manner with The lever 9 by a loose connection such that thebuoyant Weight is free to rise to the limitpermitted by the stoplo'without operatingthe connected puppet-valve, the closing of eachvalve being accomplished by' its own buoyancy. When the valves have thusbeen closed, the air-chamber 2 becomes a pressure-chamber, the internalpressure tending to maintain said valves in a closed position withoutregard to the presence .of air in said chamber. As the air accumulatesin said chamber, however, the liquid recedes therefrom, causing agravity-induced movement to be imparted to the weight 6 and lever 7,which movement-is transmitted to the valve 5, connected with said lever,and serves to open said valve against the force of the internalpressure.

-When a plurality of puppet-valves are employed, one or more of them maybe thus connected with the buoyant weight 6, the opening of theconnected valves by the gravityiuduced movement of the buoyant weightserving to relieve the pressure within the chamber 2, permitting theother valve or valves to open by gravity. The float being whollycontained within the air cha'mber is caused to rise and fall solely byreason of its 'cha mb'erand automatically cause the buoy-' v buoyancyand weight Without regard to the The several parts are so constructedand'a'rrangedthat the buoyant weight has-a very limited movement andonly operates to open the buoyant valve after the air-chamber has becomeapproximately full of air. As the air escapes from the chamber and theWater rises in the samethebuoyant weight will be given its maximumelevation by flotation long before the water rises suificiently in theair-chamber to close the buoyant valves by flotation. A considerableperiod is thus permitted to elapse between successive operations of theapparatus, as the valve is not opened until the chamber is approximatelyfull of air and is not closed until the chamber is approximately full ofwater.

My improved valve will operate automatically to relieve the main fromgaseous matter and efiectively prevent the escape of liquid mattertherefrom, and this without regard to the pressure maintained in themain. It will also admit air in case of a break in the main, which forsteel pipe lines is a safeguard against collapse.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a pressure-chamber provided with an inletleading from a denser medium, and in its upper portion with an outletleading to a rarer medium; of a buoyant valve for said outlet adapted tobe maintained closed by the pressure within said chamber; a buoyantweight in said chamber; and connecting mechanism for causing said valveto be opened at certain times in opposition to said pressure by saidbuoyant weight, and permitting said valve to remain open until closed byflotation independently of the buoyant weight, substantially asdescribed.

2. The combination with a liquid-conducting main; of agas-chamberlocatedabove said main in communication therewith and provided with agas-outlet; of a buoyant valve for said outlet adapted to be closed byflotation upon said liquid as the same rises in the gas-chamber; abuoyant Weight; and means whereby said Weight is adapted to act uponsaid valve by a gravity-induced movement only.

3. The combination with a pressure-chamber provided with an inlet; and aplurality of outlets; of a like plurality of valves for the respectiveoutlets adapted to be separately closed by flotation and maintainedclosed by the pressure within said chamber; and abuoyant weight in saidchamberoperatively connected with one of said valves and adapted to openthe same by a gravity-induced movement in opposition to said pressure,substantially as described.

4:. The combination with a pressure-chamber provided with an inlet, andan outlet in its upper portion; of a buoyant Valve adapted to close saidoutlet; a buoyant weight and connected lever located within saidchamber; and a loose connection between said lever and valve whereby agravity-induced movement only of said buoyant weight is transmitted tosaid valve to open the same in opposition to the internal pressure,substantially as described.

In testimony whereof I have hereunto set my hand this 23d day ofJanuary, 1902.

ARTHUR S. TUTTLE.

Witnesses:

D. FORBES, A. M. LINDSAY.

